Gallium Germanium Alloy.
An example of the element Germanium

Gallium Germanium Alloy.
This is a small crystal of gallium-germanium semiconductor alloy pulled by the Czochralski process. The bubbles on the surface are a defect that may explain why this sample ended up in the surplus market.Source:SoCal (Nevada), IncContributor:Theodore GrayAcquired:10 February, 2007Text Updated:10 February, 2007Price: $15Size: 1"Composition:GaGe